Dan's Breakthrough: New evidence confirms a European presence on Oak Island 100 years before the discovery of the Money Pit. (S5, ep 8)

In Dallas, Detective Eddie Ibarra discovers a woman shot dead in the lobby of her work place. Will a video surveillance tape give him any leads? (S5, ep 14)

Detective Rick Duggan unravels the mystery of a dumped body rolled up in a carpet and Detective Fernando Bosch takes it personally when a 66 year-old Cuban man is shot. (S5, ep 13)

Detectives Bob Ermatinger and Ken Penrod investigate the murder of an unidentified young woman found shot to death at White Rock Lake. (S5, ep 12)

In Memphis, a well-loved neighbourhood investor is shot, and the only eyewitness is a young girl on her way home from school. (S5, ep 11)

In Memphis, Tennessee, Sergeant Caroline Mason takes it personally when a 75-year-old man is shot dead in her old neighbourhood.

Detective Manny Castillo investigates a brutal double homicide. The key to the case could be a surviving third victim, who is clinging to life after being shot several times.

Driven To Murder: Detectives encounter a huge cast of shady characters as they investigate the execution of a millionaire. Could his murder have been a professional hit? (S5, ep 4)

Deacon's Demise: The notorious 'South Side Rapist' terrorised St Louis in the early 90s, but it took several years before the police were led to an unlikely culprit. (S5, ep 3)

Christmas Mourning: In 1988, Beverly Eller was found murdered in her home. Years went by before a piece of evidence surfaced that tied an unlikely suspect to the crime. (S5, ep 2)